Vacuum cleaner



FIG. 1 is a front perspective view of a vacuum cleaner showing our new design;

FIG. 2 is an enlarged top plan view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a front view thereof.

The broken line showing of the bottom region of the vacuum cleaner is for environmental purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for a vacuum cleaner, as shown and described. 